This is a promotional video for a popular game in Japan that features cute, little cat people whose faces are on these cat hats. You don't need to understand the context to understand how cute these videos are. Fortunately, there's a lot more where this video came from.
The Maritime Museum of the Atlantic in Haifax, Nova Scotia had a special employee named Erik the Red. He worked as a particularily effective rodent control officer aboard the CSS Acadia, a 102-year-old ship moored outside the museum for display. He has become loved by visitors and coworkers alike but at around 18-years of age, he's ready to retire to a quit life in the country.
via CBC News
They aren't about to let him go without a party of course so the Maritime Museum of the Atlantic is organizing a big send off on September 20 on his behalf.